CVE-2025-64753

low-risk

Published 2025-11-13

grist-core is a spreadsheet hosting server. Prior to version 1.7.7, a user with only partial read access to a document could still access endpoints listing hashes for versions of that document and receive a full list of changes between versions, even if those changes contained cells, columns, or tables to which the user was not supposed to have read access. This was fixed in version 1.7.7 by restricting the `/compare` endpoint to users with full read access. As a workaround, remove sensitive document history using the `/states/remove` endpoint. Another possibility is to block the `/compare` endpoint.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.3/10 Medium

NETWORK / HIGH complexity

Affected Products (1)

Grist-Core

Affected Vendors

Getgrist

References (2)

Release Notes https://github.com/gristlabs/grist-core/releases/tag/v1.7.7

Vendor Advisory https://github.com/gristlabs/grist-core/security/advisories/GHSA-3v78-cw58-v685

/ 100

low-risk

Severity 17/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal